Engine-plow.



w. o. RARIG. ENGINE PLOW. .MPLIOATIONl FILED JAN. 21, 1913.

Patented Apr. 21, 1914 6 SHEETS-B HEBT 1.

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.d Ewen/2115;@ Waem Jaaa@ W. 0. RARIG.

ENGINE PLOW;

1,094,018. Patented A111221, 1914.

I 6 SHEETS-SHEET 2.

W. C. RARIG.

ENGINE PLOW.

APPLICATION FILED 11111.21, 1913.

1,994018 i Patented 111111211914 6 SHEETS-SHEET 3.

"und" l l l L l J3 L/.

W. C. RARIG.

ENGINE PLOW.

APPLIOATION FILED-JAN. 21, 1913.

Patented Apr. 21', 19,14

6 SHEETS-SHEET 4.

f. 'y .ulm I 15 W. C. RARIG.

ENGINE PLOW.

APPLICATION FILED IAN.21, 1913.

s SHEETS-SHEET 5.

Patented Apr. 2.1

Jaaa@ @QJ/WM,

W. C. RARIG.

ENGINE PLOW.l

APPLICATION FILED JAN,21, 1913.

K l I PateptegHEpr-rnlgel? g 5- W/zdmcfwfy. @my WWA JMWMWMZ' WELDEN c.name, 4or TAET, 'rnxnsf ENGINE-PLOW.

Specification of Letters Patent.

Patented Apr. 21, 1914.

Application lled January 21, 1913. Serial No. 743,252. I

To all whom it may concern Be it known that I, WELDEN C. RARIG', acitizen of the United States, residing at Taft, in the county of St.Patricio and State `of Texas, have invented certain new and usefulImprovements in Engine-Flows, of whichthe `followingis a specification.`

My invention relates iii general to plows, and more particularly toplows adapted to be drawn by traction engines.

' In the operation of engine-drawn plows for plowing hard ground, orground covered with brush roots or stumps, or'for plowing ground to anunusual depth, it is impossible to use a gang of plows having a combinedfurrow equal to the width of the traction engine, owing to the fact thatthe resistance in plowing under such conditions is greater than thepower of the* traction engine. In order to avoid driving the engine withone traction wheel on theplowed ground, it is necessary that the plowshould follow the engine at oneside of its path of movement. Thisrequires such a connection between the engine and plow that the tendencyof the plow to longitudinally aline with the engine will be resiste-d,while at the same time the engine must be so connected with the plowthat the draft on the engine will not deiect the engine from a straightcourse. It is further desirable that the connections between the engineand plow should be so dexible that any slight variations in thedirection of the engine will not produce a corresponding variation inthe path of the plow. One of the objects of my invention is to providean engine low in which the draft will be applied att elongitudinalcenter of the engine so as not to interfere with the engine moving in astraight course, and in which the connections between the engine andplow will be suiiiciently flexible to prevent the communication to theplow of vaiiations in the direction of the engine,-due, for instance, toiinevenness of the ground or encountering of objects-theconnectionshowever between the engine and plow being of such a character that thetendencyof the plow to longitudinally aline with the engine willautomatically maintain the plow in its path at one side of the path ofthe engine. In the operation of engine plows itis frequently necessaryto back them, for instance, when vstumps or other obstructions areencountered which stall the engine and thereby necessitate it backing upto disengage` the plow from the obstruction. Inasmuch as the plow mustfollow the engine at one side of the path .of the engine, the backing ofthe engine tends to swing the plow to a osition at right angle to itsnormal path,`t ereby frequently breaking the draw-bar and also damagingthe plow 'by the engine backing onto it.

.A further object of my invention is to provide connections between theengine and the lplow drawn thereby, of such a character that when theengine is backed the tendency of the plow to swing transversely to itsnormal path will be automatically overcome and the plow will be movedbackward in its normal path. '3 f. i

A still further object ofimyinvention is to provide animproved plowvparticularly adapted to be drawnby a tract-ion engine, which will bestrong in construction, dura-v ble in use, and eflicient in operation.

My invention will be more fully disclosed i hereinafter with referenceto. the accompanying drawings,4 in which the same is illustrated asembodi 'd ina convenient and practical form, and i `which-- Figure l isa plan view of my improved plow and the traction engine by which it isdrawn, the latter being principally shown diagrammatically; Fig. 2, anenlarged detail sectional View on line 2, Fig. 1, showing the connectionbetween the engine draft bar and the hitch rod of the plow; Fig. 3, anenlarged sectional View on line 3, Fi 1, showing the draw tube and itsassociated parts; Fig. 4, a plan view of the plow; Fig.'

5, a side elevation; Fig. 5*,a ldetail elevational view looking1 fromthe rear, Showing one of the'plow bodies and its component parts; Fig.6, aV front elevation; Fig. 6a, 'a detail section through one of theaxles showing its non-rotative engagement with its steering knuckle;Fig. 7, a horizontal vsection on line 7, Fig. 5, through the sup orting.frame; Fig. 8, a sectionalwiew o the plow frame on line 8, Fig. 7; Fig.9, a detail sectional ,view on line 9, Fig. 7 Fig. 10, an

elevational View of one of the front axles, showing the means forrelatively raising and lowering the wheel and the plow frame; Fig. 11,an enlarged elevational View of the gear casing for relatively adjustingthe wheel and plow frame looking from the rear in Fig. 10; Fig. 12, averticalcentral section through the gear box; and Fig. 18, a horizontalsection on line 13, Fig. 12. v

The same reference characters are used to designate the same parts inthe several figures of the drawings.

Referring to Fig. 1, A designates the plowsupported upon front wheels B'and B2 and rear wheel B3, and connected by a draw rod C with a draw-barD of the traction engine E. The draw-bar D is flexibly connected to thetraction engine at its longitudinal center at a pointtransverselyinadvance of the main axle, so that the draft will be imposed upon theengine at its longitudinal center and at a point in a transverse planenear the-center of the engine, so that any variations inthe direction ofthe engine will not be communicated to the plow, but will merely causethe draw- -bar D to swing with respect to the engine,

such swinging motion-having an extent, if

necessary, @limited only by the rear outer corners of the engine frame.In order that sudden strains upon the means which conneet the enginewith the plow may be avoided, the draw-bar is yieldingly connected tothe engine 'in any suitable manner, asby means ofaspring D surroundingthe end of the draw-bar and interposed between a pin d and a rockingbearing e carried by the engine frame, so that the pull is exertedthrough the cushioning spring D', and danger of breaking the connectionsthrough the sudden stopping of the plow, or through its encounteringobstructions, is minimized. It will be observed by reference to Fig. l

` that the bearing e comprises a vertical rib 'which rests against theadjacent vertical surface of the transverse angle barsof the en` gineframe so as to, accommodate its position to any lateral swinging of thedrawbar relatively to the engine.

As shown in Fig. 2, the draw-bar D passes` between and is guided by thehorizontal angle bars E' and E2 forming the rear of the engine frame.The end of the draw-bar D which projects to the rear of the engine frameis provided with a slot ci through which extends the coupling pin D2connecting the same with a clevis' D3. The front of the clevis iswedge-shaped-as shown at ais-above and below the draw-bar D, and isadaptedv when the engine is backed to engage Within any one of the teethin the rack bar E2 which is fixed to the angle bars E' and E2 of theengine fra-me. In this manner when an engine is backed a direct thrustis imparted from the engine frame to the clevis D3 and thence to theplow through the connecting rods in a manner which' will -be more fullyhereinafter described.v

Plow )trama-The plow frame, as will be readily observed by reference toFigs. 4 to 9, comprises three parallel longitudinal channel beams A', A2and A3 of graduated verse planes.

F indicates a l removable longitudinal channel beam bent so as to formlongitudinal portions F', F2-and Fs lying parallel to and'spaced fromthe rear ends of the fixed channel beams A', A2 and A". Extendingtransversely across the top flanges of the channel beams A', A2 A3 and Fare tying beams, also preferably of channel cross section, G', G2, G3and G4. Extending transversely across the lower horizontal flanges ofthe longitudinal channel beams and alining with the top transverse beamsare tie plates g', g2, g3 and g4. The transverse top beams and bottomplates are riveted to the horizontal flanges of the main channel beamsA', A2 and A3 and are bolted to the lhorizontal flanges of thesupplemental longitudinal channel beam F, so that the latter may beremoved to permit the removal of any of the plow standards, whennecessary,l in a manner hereinafter to be described.

G designates a bottom plate also secured to the bottom horizontalflanges of the longitudinal beams-as shown in Fig. 9-such plate servingto add.-structural strength to the plow frame, and also to form a smoothbottom for the frame so that roots, brush, or other obstructions, willpass under-the plow without being entangled with the frame.

The front ends of the longitudinal beams extend between two fronttransverse angle beams H' and H2, as clearly shown in Figs. 6 and S. Theflanges of the beams A' and A3 are riveted to the horizontal flanges ofthe angle beams H' and H2, while the flanges of the beam F are bolted tothe horirontal flanges of the angle beams.

KQ K2 and K8 designate plow standards, the upper ends of which areinterposed between the parallel adjacent portions of the respectivelongitudinal beams A', A2 and A2, and the opposing portions F', F2 andFd of the removable longitudinal beam F. Then upper ends of thestandards are rovided with series of lugs /c which fit within the topand bottom flanges of the adjacent portions of the channel beams, asclearly shown in Figs. 7 and 9. Bolts extend through the vertical websof the channel beams and the interposed' lugs on the plow standards,thereby rigidly securing the plow standards to the plow frame. In orderto insure the rigidity of such connection three vertical pairs oflugs 7care preferably provided on each standard between the portions 0f thechannel beams to which it is connected. Secured to the lower ends of thestandards, in any suitable manner are plow bodies 7c', 7:2 and 7c3,respectively, which are so staggered as to cut successive furrows as theplow is drawn. The construction'of the plow bodies will bereadilyunderstood by reference to Figs. 5 and 5", in which J designatesa y front upper portion of the land-side J3 proadjusted.

which it is subjected in plowing hard landor land covered with brushroots and stumps. In Fig. 5, it will be seen that the jects. inv frontof the mold-board so as to form a colter-knife ja. By forming thecolter-knife integral with the land-side, rather than forming thecolter-knife separately and extending it toI the ployT frame forsupport, less obstruction is afforded to brush and roots.

.Steering mecham'sm.-Secured to theo positely projecting verticalflanges of t e front angle beams H and H2 are plates 4L and L2 havingpairs of s aced horizontal lugs Z and Z2, respective y, as shown inFigs. 5 and 6. Extending vertically through the spaced pairs of ears Zand Z2 are the vertical portions M and M2 of the axles of the frontwheelsB and B2. Interposed between the spaced ears Z2 is a steeringknuckle N2 through which the vertical portion of the axle M2 passes, avertical key- Way m being formed in the axle into which extends a key ncarried by the knuckle, as shown in detail in Fig. Ga. In this mannerthe axle may be adjusted vertically relatively to the knuckle, butisnon-rotatively connected therewith. .I f s N designates a knuckleinterposed between the ears of the pair Z through which extends thevertical portion of the axle M', a key and groove connection beinginterposed between the knuckle and axle, such as above described inconnection with the axle M2 and knuckle N2.

L3 designates a bracket rigidly secured at the rear of the plow frame-asshown in Fig. 7-having laterally projecting spaced ears Z"s betweenwhich is located theknuckle N3 through which extends the verticalportion of the rear axle M3 of the rear wheelBS a groove and keyconnection being provided between the axle and knuckle.

vA steering arm n2 projects from the knuckle N2 and is pivotallyconnected to a screw threaded rod 02-as shown in Fig. 4,

which extends through an eye 0 on a plate O rigidly secured to the tophorizontal flanges of the channel beams A and F. Lock nuts o and 02.engage the rods 02 on opposite sides of the eye o, so tion of the rearsteering wheel B2 may be Steering arms n and n2 project forwardly fromthe knuckle NI and N2, re-

spectively, which are pivotally connected by'1 a rod M, the latter beingadjustable in length by means ofa turnbuckle m so as to adjust tjhat theposiframe.

the relative and B2. a 1

Plow adjusting mechanism-Rigid@ secured to the brackets L and L2 arevertical rack bars P and P2, respectively. A similar rack bar P2projects upwardly yadjacent the rear axle M3 and is rigidly secured atits lower end to a bracket L'2 rigidly secured to vthe plow frame, asshown in Figs. 4 and 5.

The rack bars l, P2 and P3 extend through gear casings R, R2 and R2,respectively, through which also rotatably extend the vertical portionsof the axles M', M2 and 'M3, respectively. The gear casings, and gearstherein, are all similar in construction and lopera'tionrand areillustrated in detail in Figs. 10 to 13, inclusive, in which are shownthe gear casing and inclosed gears `for relatively adjusting the axle Mand theplow R indicates a removable side cover positions of the frontwheels B of each gear box which is secured in place by screws 1- passingthrough registering lugs on .the casing and cover. R4 designates a stubshafty journaled at its ends in thc casing and cover and having rigidthereon a pinion r2 and a ear wheel r3, the latter meshingwith apinionr4 fixed upon a c ounter-shaft R5 extending through and journaledin the cover R and opposing Wall of the casing. The vertical rack bar Pextends between the pinion r2 with which it meshes, and a cylindricalbearing r on the shaft R2, the rack bar` being thereby retained in meshwith the pinion r2. The shaft R has securedthereto a ratchet s on theportion thereof outside of the cover of the gear casing. A pawl Scoperates with the ratchet s to lock the same, and with it the rac-k barP in adjusted positions. s is a sprin for retaining the pawl S inengagement Wit 1 the ratchet wheel s. .The end of the shaft R5 issquared-as shown at S-so as to be engaged by a Wrench for rotating thesame.

In order to raise or lower any of the wheels with respect to the plowframe, a wrench is applied to S and the respective shaft R5 therebyrotated, which, through the meshed pinion 1"* and gear r3, raises orlowers thecorresponding rack bar through the engagement therewith of thepinion r2, thereby vertically adjusting such rack bar with respect tothe gear'casing and coincidently vertically adjusting the correspondingaxle with respect to the plow frame so as to raise or lower each wheelif desired. The gear casing is prevented from moving verticallyrelatively to the axle by means of a shoulder m2 (see Fig.,12) formed byreducing the upper end of the axle which passes through the gear casing,and by a collar m clamped to the upper end of the axle immediately abovethe gear casing.

Draft. mevham'm.-Referring more parvv ticularly to Figs, 4 and 7, T andT2 designecting links, the rear ends of whichareA of the plow standardK8.

- pivotally connected by a transverse'coupling' slotted and extendbetween the ears of brackets t and t2, respectively, the latter beingrigidly secured to the plow frame, preferably the bracket t', beingriveted to the web of the ychannel beam A, and the bracket t2 beingbolted to the 'web of the beam A3 by the sa-lnebolts which pass throughsuch beam, the adjacent portion F3 of the beam F and the interposed headA bolt t extends througi registering holes in each of the lears of thebrackets 't' and t2 and through the slot in the rear ends of the draftlinks T and T2, respectively. The forward converging ends of the draftlinks are pivotally connected by a coupling u with a clevis U. AV-shaped bumper V is secured to the front end of the longitudinal beamA2 intermediate of the horizontal flanges of the transverse front anglebars H and H2. 'lhis bumper lies between the converging ends of thedraft links T and T2 and is adapted to be directly engaged by'thein whenthe -plow is to be backed. The clevis U is pivotally connected by thevertical coupling U with spaced horizontal ears u on a coupling member W(see Fig. 3) the latter having a collar at its forward end through whichextends the'tubular member C of the coupling rod-C. A clamp nut wtightly Isecures the coupling member, W to the coupling tube C. C2designates a rod in telescoped connection with the coupling tube C andadjustably connected therewith by means of a pin c2 extending throughregisteringholes in the tube androd. The forward end of the rod C2extends through a clevis C2 and is pivotally connected therewith by ahead c3 located within the clevis and extending within and secured tothe adjacent end of the rod C2. lThe @levis C2 is pin d2 with the clevisD3 of the engine drawbar D. X designates a steering rod, one end ofwhich is connected tothe coupling member lV by 'engaging in one of aseries of spaced holes fw, as shown in Fig. 4. 'Ihe opposite end of thesteering rod is pivotally connected to the steering arm u. of theknuckle N through whichextends the axle M' of the front wheel B', suchconnecting means consisting of a bolt fc secured to the outer end of thearm nand connected to a yoke X within which is located a spring m2surrounding the portion of the steering rod X which passes through suchyoke. A collar m2 is rigidly secured to the steering rod X adjacent oneside of the yoke, while the end of the` steering rod which projects vtothe other side of the yoke is provided with a nut Any suitable lockingmeans. such for instance as the leaf spring :1:5 locks the nut a,"against rotation; Y Y2 and Y3 designate Scrapers engaging the periph--eries of therespective wheels B', B2 and B3, each of such Scrapersbeingsupported by a resilient bracket Y fixed to a collar y secured tothe axle of the corresponding wheel.

Operation-The plow bodies are adjusted so as to cut furrows of thedesired depth by means of adjusting the wheels relatively to thesupporting frame, this being done by applying a wrench to the shafts ofthe gears in the respective gear boxes, thereby vertically adjusting therack bars and with them the vertical portions of the axles. The positionof the rear steering wheel is adjusted by means of the screw threadedrod 02, so that its inclination will be such as to guide the plow in thedesired direction with respect to the path of the engine. The rod N isalso adjusted by means .of the turnbuckle 'n so that the front wheelswill be given the desired 'relative inclination to retain the front endof the plow in the desired position with respect to the furrow. Thesteering rod X is also adjusted so that the front wheels will be giventhe desired inclination vthrough the connection of the steering rod withthe draft members. The movement of the engine is imparted to the plowthrough the draft bar D and telescoped members of the connecting rod C.The draft links T and T2 are drawn forwardly with respect to thebrackets towhichthcy are connected until the play due to the slots attheir inner ends through which the connecting bolts pass is taken up.Any tendency of the plow to move from its positionat one side of thepath of the cngine,as shown in Fig. l-to a position in direct alinementwith the engine, causes the steering rod X to be drawn toward thefurrow, thereby inclinin the front wheels in a direction to return t 1eplow to its proper path at one side of the path of the engine.Consequently the plow isv automatically kept in proper alinement withthe engine, so as to turn over the unplowed ground adjacent the furrow,and so as to permit-the entire width of the traction engine to overlieunplowed ground.

-Any variations of the engine from its norwhich causes the segmentalrack bar E thereon to engage with the clevis D2 and thereby exert arearward thrust on the connecting rod C and through it upon the draftlinks T and' T2, causing the latter to move rearwardly through theirslotted connections with 'the brackets until the converging ends of thedraft links abut against the bumper V. A direct thrust is therebyexerted from the engine to the plow frame and the plow is movedbackwardly. It isV obvious that the position of the plow at one side ofthe engine, and the consequent inclination of the draft bar andconnecting rods, would tend to swing the front end of the plow towardthe furrow and the rear endofI the plow away from the furrow, so thatthe plow would twist to a transverse position and thereby tend to breakthe connections with the en ine, and if the engine is not stopped suciently soon to endanger the ward the furrow. This action inclines therear peripheries of the front wheels away v from the furrow so that thefront end of the plow will be directed in its backward movement awayfrom the furrow.v and the plow prevented from twisting transverselyacross the path of the engine. y

From the fore oing description it will be observed that I ave inventedan improved engine low which will be automatically rei tained 1n thedesired position at one side of the vpath of the engine withoutinterfering with the desirable fiexibility of the connection between theplow and the engine. It will be further observed that in my invention,the engine of the plow may be backed without danger of injur to theplow owing to the fact that the ten ency ofthe plow to swing transversalof the ath of the engine serves to automatically maintain the plow inits normal longitudinal alinement. It is further evident that in myimproved engine plow the depth'of the furrow may be readily adjustedandthe plow bodies elevated above the ground when it is desired totransport the same from one place of use to another.

It will also be evident that any of the wheels maybe lifted relativelyto the plow frame to disengage such wheel from an obstruction. It willbe further observed that the resilient connection between the en 'nedraw-bar and the engine minimizes the anger of breakage when the p'lowencounters an obstruction, and that the yielding connection between thesteering rod and front wheelswill cushion any sudden twisting of thewheels due to encountering an object, thereby avoiding the danger ofbreaking the steering mechanism. It will further be seen that any one ofthe plow standards may be 'readily removed when necessary by merelyremoving the longitudinal bent channel beam from the rest of the plowframe which can readily be done by merely removin the bolts whichconnect the same to the ot er members of the frame,

thereby permittin the ready disengagement of the plow stan ards.

to the act thatv Although I have herein illustrated and i described myinvention as embodied in a grub plow particularly adapted for plowingland' covered with brush roots and stumps, yet it will be understoodthat my'invention is `adapted for use wherever conditions are such as tonecessitate 'the use of a gang of plows having a combined width lessthan' the width of the tractiony engine. Certain portions of myinvention, such for. instance as the draft mechanism foryieldinglyc'onnecting thevengine with the plow and at the same time for affordin adirect thrust between the engine and -p o'w to back the latter,.areapplicable to engine-drawn plows in: general and are not restricted intheir application to plows which must be drawn at one side of the pathof theengine.

While I have described more or less in v detail the specific form inwhich I have illustrated my invention as embodied, yet I do not wish tobe understood as limiting my' self thereto, as I contemplate changes 1nform, proportion of parts, and substitution of equivalents, ascircumstances may-require, or as'may be deemedexpedient.

What 'I claim is: v

l. 4The combination with a traction engine,

-of a plow adapted t-o be drawn by the engine,

means connecting the plow with the longitudinal. center of the engine,and means actuated bythe tendency of the plow to aline longitudinallywith the engine to .maintain the path of the plow at one side of .the

path' of the engine.

2.' The combination with a traction engine, of a plow adapted to bedrawn by the engine at one side o f the path of the engine, means 'forflexibly connecting 'the plow `with the engine to prevent variations inthe direction of the engine being communicated to the plow, and meansfor exertinga direct backward thrust upon the plow when the engine isbacked. y y

3. The combination with a traction engine, of a plow, meansv for drawingtheV plow by the engine in a longitudinal path at one side of the path,of the engine, and means actu-v ated by the tendency of the plow toswing transversely to the path of the engine .when backed to maintainthe plow in its normal longitudinal position relatively to the enlne. g4. The combination with a traction engine,

of a plow, wheels upon which the plow isA supported, Asteering mechanismconnected with the wheels for controlling the direction of the plow',draw-bar mechanism connecting the engine with the plow, and meansconnecting the draw-bar mechanism with the steering mechanism forautomatically inclining the rear peripheries of the steering wheels awayfrom thefurrow when the engine backs the plow.

5. The combination with a traction engine,

of a plow, wheels upon which the plow is supported, steering mechanismconnected with the front wheels for controlling the direction of theplow, draw-bar mechanism connecting the engine'with t-lie plow andinclining toward the furrow so as to draw the plow in its forwardmovement in a path adjacent the` furrow, and means connectingv thedraw-bar mechanism with the steering mechanism for automaticallyinclining the front p'eripheries of the wheels toward the furrow whenthe inclination of the draw-bar to the direction of movement diminishes.

G. The combination with a traction engine, of a plow, wheels upon whichthe plow is supported, means connecting the front wheels to oscillatethem in unison, draw-bar mechanism connecting the engine with the plowand inclining toward the furrow, a steering rod connecting the draw-barmecha- [nisni with the means for oscillating the vfrontrwheels, andmeans for varying the y connection 0f the steering mechanism with thedraw-bar mechanism, whereby the path yot the plow may be varied v.withrespect to the path of the engine.

7 The combination with a traction engine,

y of a. plow adapted to be drawn by the engine a longitudinal yieldingthereof when the atene side of the path of-theengine, a drawbarpivotally connected t0 the engine frame at the longitudinal centerthereof and forward of the main axle Vand extending in an inclineddirection relatively tothe path of the plow, and means connecting saiddrawbar` `with the plow frame. Y

8. The combination with a tractionengine, of a plow adapted to be drawnthereby,

draw-bar mechanism connecting the engine and plow, means connect-ing the,draw-bar mechanism with the engne frame to'permlt wheels forcontrolling the direction of the` plow, draw-bar mechanism connectingthe engine with the plow, means connecting the draw-bar mechanism withthe plow to permit a slight longitudinal movement thereof l relativelyto the plow, and meansactuated by the movement of the draw-bar mechanismrelatively to the plow when the plow is backed to operate the steeringmechanism, to incline the rear peripheries of the front-v wheels awayfromI thefurrow.

"' IOIIii'a plow adapted to be drawn by atracbar is moved toward saidframe to back the tion engine, the combination with a supporting frame,of draft mechanism comprising inwardly divei'ging links, meansconnecting the inner ends of said links with the supportingframe topermit a limited relative longitudinal movement, a block fixed totheframe intermediate of the front converging ends of said links, and adraw-bar pivotally connected to the front converging ends of said links,whereby when said drawplow, said-links will engage said ixed block andimpart a direct backward thrust to said frame.

11. In a plow adapted to be drawn by a traction engine, the combinationwith a supporting frame comprising a front transverse beam andlongitudinal beams secured thereto, of draft mechanism comprisingrearwardly divergiiig links extending between longitudinal bars of saidframe, means connccting the inner ends of said links with thelongitudinal bars so as to permit a limited relative longitudinalmovement, a block fixed to the frame adjacent the front transverse barand located intermediate of the front converging ends of said links, andadraw-bar pivotally connected to the front converging ends of saidlinks,,whereby said draft mechanism transmit-s a pull exerted on the draw-barto the frame at the rear of the front thereof while a movement of saiddraw-bar toward said frame will exert a. thrust upon said xed block.

12. In a plowT adapted to be drawn by a 100 traction engine, thecombination with a supporting frame, of plow bodies secured tosaidframe, wheels upon which said frame is mounted, draw-bar mechanismoperatively connected to said frame, steering mechanismconneeting thewheels with said drawbar mechanism, and means for adjusting the lengthof the draw-bar mechanism.

13. In a plow adapted to be drawn by a traction engine, the combinationwith" a supporting frame, of draft mechanism comprising inwardlydiverging links, means connecting the inner edge of said links with thesupporting frame to permit a limited relative movement, and a draw-barpivotally connected to the front converging ends of said links, wherebywhen said draw-bar ismoved toward said frame to back the plow, saidIlinks will have a limited backward movement longitudinally of the frameand 12a when the engine is backed.

15. The combination with a traction engine,of a plow, wheels upon whichthe plow is supported, steering mechanism connected with the wheels forcontrolling the direction of the plowz drawbar mechanism connecting theengine with the plow, and means connecting the draw-bar mechanism withthe steering mechanism for automatically maintaining the plow in itspredetermined relation to the path of the engine when the engine backsthe plow.

16. The combination with a traction engine, of a plow, wheels upon whichthe plow is sup orted, steering mechanism connected with tie wheels forcontrolling the direction of the plow, draw-bar mechanism connecting theengine with the plow, means connecting the draw-bar mechanism with thesteering mechanism for automatically maintaining the plow in itspredetermined relation `to the path of the engine when the en- WEL-Dinic. RARIG.

Witnesses GEO. L. WiLKINsoN, ANNIE C. COURTENAY.

